Queues are cleared when I reopen the app

I have an iPhone and the way I typically listen and discover music is by making a queue (which can sometimes get to 99+ songs). However, I’ve had an ongoing issue where when I return to the app after a few hours, or let’s say when I wake up, the Spotify app seems to restart itself and the queue disappears.

Is there a way to solve this? What exactly is happening here? Is the app automatically updating nearly once a day?